Hi Tarko, Thanks for allowing us to look into the affected units to help us determine that the root cause is an interoperability with 11.4R4 Junos and the U-boot. This issue is specific to 11.4R4 and the EX4500. No other platforms are affected. This is a software problem and recovery could be accomplished via break sequence upon boot and upgrading the jloader.
We have released a PSN detailing the identification and recovery of this issue: http://www.juniper.net/alerts/viewalert.jsp?actionBtn=Search&txtAlertNumber=PSN-2012-07-663&viewMode=view In addition, we have appended an alert on the EX4500 11.4R4 download page advising a Jloader upgrade prior to installing 11.4R4. We apologize for the inconvenience this may have caused you and thanks again for letting us dig in for the root cause. Regards, --James _______________________________________________ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
